Mounting method for longitudinal waste stop belt of tunnel side wall foundation

The invention discloses a mounting method for a longitudinal waste stop belt of a tunnel side wall foundation. The mounting method comprises the following steps: firstly, straightening the elongated steel-edged water stop belt and enabling the straightened steel-edged water stop belt to penetrate out of an end mold preservation slot of the side wall foundation to be cast; secondly, clamping the tail end of the steel-edged water stop belt from two sides of the steel-edged water stop belt by using two hard metal bars, and respectively tightening the upper end and the lower end of the metal bars by using iron wires; thirdly, drilling an anchor in the rear wall of the side wall foundation to be cast, wherein the upper end of the anchor tilts backwards, and the anchor and the steel-edged water stop belt are positioned on the same longitudinal plane; fourthly, connecting the tail end of a wire gripper with the upper end of the anchor by a steel wire rope, connecting the front end of the wire gripper with the middles of the two metal bars by the steel wire ropes, wrenching a wrench on the wire gripper, and tightening and straightening the steel-edged water stop belt by driving the steel wire rope. The problem that the longitudinal water stop belt in the tunnel side wall foundation is poorer in longitudinal mounting linearity and vertical mounting verticality is fundamentally solved; besides, the mounting method is simple in operation and has a broad popularization value.